Journal of Agriculture and Ecology Research International http://www.journaljaeri.com/index.php/JAERI <p style="text-align: justify;"><strong>Journal of Agriculture and Ecology Research International (2394-1073)</strong> aims to publish high quality papers (<a href="/index.php/JAERI/general-guideline-for-authors">Click here for Types of paper</a>) in all areas of Agriculture and Ecology. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer reviewed, open access INTERNATIONAL journal.</p> en-US contact@journaljaeri.com (Journal of Agriculture and Ecology Research International) contact@journaljaeri.com (Journal of Agriculture and Ecology Research International) Fri, 07 Feb 2020 10:42:09 +0000 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 Some Correlation Coefficients of Maize under Soil-application of Pendimethalin in Mubi and Gombe Ecologies of Nigeria http://www.journaljaeri.com/index.php/JAERI/article/view/30121 <p>Field experiment was carried out during the wet season of 2012 at the Teaching and Research Farm of Faculty of Agriculture, Adamawa State University, Mubi (Lat.10° 15<sup>II </sup>N and Long.13° 16<sup>II</sup> E, altitude of 696 m above sea level) and a Community based Demonstration Farm in Gombe (Lat.11° 30<sup>” </sup>N and Long.10° 20<sup>” </sup>E, altitude of 340 m above sea level). Both locations were situated in the Northern Guinea Savanna agro-ecological zone of Nigeria. The study was carried out to determine the level of correlation between weed parameters, growth and yield attributes of maize as affected by pendimethalin application. Treatments which consisted of six different rates of pendimethalin (1.0, 2.0, 3.0, 4.0, 5.0, 6.0kg a.i.ha<sup>-1</sup>) + two control checks (weed free and weedy check) were placed in the main plots as main treatment while maize cultivar SAMMAZ 17 was placed in the sub-plots as sub-treatments in a split plot design and replicated three times. Pendimethalin was pre-emergence- applied a day after sowing (DAS). Weed free check plots (control) were kept weed free by regular weeding. Similarly, all agronomic practices were adequately carried out except those under study. Data collected on weed cover score (WCS), weed fresh weight (WFW), weed dry weight (WDW), days to 50% emergence (D50E), crop injury score (CIS), crop vigour score (CVS), establishment count (EC), plant height (PH), leaf area index (LAI), crop growth rate (CGR), relative growth rate (RGR), days to 50% tasseling (D50T), 1000 grain weights (1GWTs) and grain yield (GY) were analyzed using Minitab Version 11 Statistical Software. Results revealed that WCS was significantly higher and strongly correlated with WFW, WDW but was strong and negatively associated with GY of maize in both Mubi and Gombe. D50E, D50T and LAI were positive but contributed weakly to the GY of maize in Mubi. Similarly, D50E, D50T, PH and LAI had same pattern of behavior as the former in Gombe. EC was negative and also contributed weakly to the grain yield of maize in both locations. PH, CVS, CGR, 1GWTs were positive and strongly associated with GY of maize in Mubi. The same trend was also observed for all parameters except PH which though positive it was weakly associated to the final GY of maize in Gombe. Pendimethalin did not posed any significant effect on the post- physico-chemical properties of the soils at the two experimental sites, except in soil-pH, organic carbon, available phosphorus, total nitrogen, magnesium, potassium and sodium in Mubi and available phosphorus, total nitrogen, Calcium, Magnesium and Potassium in Gombe. These soil properties were significantly influenced by rates of soil applied Pendimethalin compared to the control checks.</p> I. J. Dantata, E. A. Shittu, H. J. Philip, M. Sani ##submission.copyrightStatement## http://www.journaljaeri.com/index.php/JAERI/article/view/30121 Fri, 07 Feb 2020 10:54:58 +0000 A Comprehensive Review on Greenhouse Drying Technology http://www.journaljaeri.com/index.php/JAERI/article/view/30123 <p>Drying is one of the most important unit operations for food preservation and storage. It is a energy intensive process and with the increase in the price and demand of electricity, renewable energy (solar) is proving its worth. Greenhouse dryers are low cost, easily constructible and can be utilised for invariably majority of agricultural commodities. The above attributes accounts for its high popularity in the Indian sub continents and Africa. An attempt has been made to generate a comprehensive review on the application, advances in construction, modelling, simulation and economics of the solar greenhouse dryers.</p> Abhinav Dubey, Atish Sagar, Pankaj Malkani, Mukesh Kumar Choudhary, Sawant Sanket Ramnath ##submission.copyrightStatement## http://www.journaljaeri.com/index.php/JAERI/article/view/30123 Mon, 10 Feb 2020 00:00:00 +0000